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Finding the Fourth Proportional to 40,415.63, 55,828.02 and 36,643.04

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Solution

The fourth proportional to 40,415.63, 55,828.02 and 36,643.04 is: 50,616.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,415.63 : 55,828.02 = 36,643.04 : x
  2. Step 2: Convert to fraction form
    40,415.63/55,828.02 = 36,643.04/x
  3. Step 3: Cross multiply
    40,415.63x = 55,828.02 × 36,643.04
  4. Step 4: Simplify right side
    40,415.63x = 2,045,708,369.98
  5. Step 5: Solve for x
    x = 2,045,708,369.98/40,415.63
  6. Step 6: Final answer
    x = 50,616.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.